1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCore/qglobal.h>
#include <QtCore/qatomic.h>
#include <e32debug.h>
QT_BEGIN_NAMESPACE
// Heap and handle info printer.
// This way we can report on heap cells and handles that are really not owned by anything which still exists.
// This information can be used to detect whether memory leaks are happening, particularly if these numbers grow as the app is used more.
// This code is placed here as it happens to make it the very last static to be destroyed in a Qt app. The
// reason assumed is that this file appears before any other file declaring static data in the generated
// Symbian MMP file. This particular file was chosen as it is the earliest symbian specific file.
struct QSymbianPrintExitInfo
{
QSymbianPrintExitInfo()
{
RThread().HandleCount(initProcessHandleCount, initThreadHandleCount);
initCells = User::CountAllocCells();
}
~QSymbianPrintExitInfo()
{
RProcess myProc;
TFullName fullName = myProc.FileName();
TInt cells = User::CountAllocCells();
TInt processHandleCount=0;
TInt threadHandleCount=0;
RThread().HandleCount(processHandleCount, threadHandleCount);
RDebug::Print(_L("%S exiting with %d allocated cells, %d handles"),
&fullName,
cells - initCells,
(processHandleCount + threadHandleCount) - (initProcessHandleCount + initThreadHandleCount));
}
TInt initCells;
TInt initProcessHandleCount;
TInt initThreadHandleCount;
} symbian_printExitInfo;
Q_CORE_EXPORT bool QBasicAtomicInt::isReferenceCountingNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
Q_CORE_EXPORT bool QBasicAtomicInt::isTestAndSetNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
Q_CORE_EXPORT bool QBasicAtomicInt::isFetchAndStoreNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
Q_CORE_EXPORT bool QBasicAtomicInt::isFetchAndAddNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
Q_CORE_EXPORT bool QBasicAtomicPointer_isTestAndSetNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndStoreNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
Q_CORE_EXPORT bool QBasicAtomicPointer_isFetchAndAddNative()
{
#ifdef QT_HAVE_ARMV6
return true;
#else
return false;
#endif
}
//For ARMv6, the generic atomics are machine coded
#ifndef QT_HAVE_ARMV6
class QCriticalSection
{
public:
QCriticalSection() { fastlock.CreateLocal(); }
~QCriticalSection() { fastlock.Close(); }
void lock() { fastlock.Wait(); }
void unlock() { fastlock.Signal(); }
private:
RFastLock fastlock;
};
QCriticalSection qAtomicCriticalSection;
Q_CORE_EXPORT
bool QBasicAtomicInt_testAndSetOrdered(volatile int *_q_value, int expectedValue, int newValue)
{
bool returnValue = false;
qAtomicCriticalSection.lock();
if (*_q_value == expectedValue) {
*_q_value = newValue;
returnValue = true;
}
qAtomicCriticalSection.unlock();
return returnValue;
}
Q_CORE_EXPORT
int QBasicAtomicInt_fetchAndStoreOrdered(volatile int *_q_value, int newValue)
{
int returnValue;
qAtomicCriticalSection.lock();
returnValue = *_q_value;
*_q_value = newValue;
qAtomicCriticalSection.unlock();
return returnValue;
}
Q_CORE_EXPORT
int QBasicAtomicInt_fetchAndAddOrdered(volatile int *_q_value, int valueToAdd)
{
int returnValue;
qAtomicCriticalSection.lock();
returnValue = *_q_value;
*_q_value += valueToAdd;
qAtomicCriticalSection.unlock();
return returnValue;
}
Q_CORE_EXPORT
bool QBasicAtomicPointer_testAndSetOrdered(void * volatile *_q_value,
void *expectedValue,
void *newValue)
{
bool returnValue = false;
qAtomicCriticalSection.lock();
if (*_q_value == expectedValue) {
*_q_value = newValue;
returnValue = true;
}
qAtomicCriticalSection.unlock();
return returnValue;
}
Q_CORE_EXPORT
void *QBasicAtomicPointer_fetchAndStoreOrdered(void * volatile *_q_value, void *newValue)
{
void *returnValue;
qAtomicCriticalSection.lock();
returnValue = *_q_value;
*_q_value = newValue;
qAtomicCriticalSection.unlock();
return returnValue;
}
Q_CORE_EXPORT
void *QBasicAtomicPointer_fetchAndAddOrdered(void * volatile *_q_value, qptrdiff valueToAdd)
{
void *returnValue;
qAtomicCriticalSection.lock();
returnValue = *_q_value;
*_q_value = reinterpret_cast<char *>(returnValue) + valueToAdd;
qAtomicCriticalSection.unlock();
return returnValue;
}
#endif // QT_HAVE_ARMV6
QT_END_NAMESPACE
|
